“Night at the Museum” (2006) is a perfectly harmless, somewhat entertaining movie that promotes father-son bonding, history appreciation, museums and reading. Ben Stiller stars as the museum night watchman who learns that history really can come alive. For some reason, Stiller carries an aura of unlikeability in many of his movies, and this is one of them. It’s too bad, because supporting characters Robin Williams (Teddy Roosevelt) and Owen Wilson (cowboy) are a lot of fun. It’s a kids/families movie, so there’s lots of physical humor and some ham-fisted jokes that make you groan. But like I said, it’s harmless.